Absorption refrigerators have low efficiency. Notice that B is the second letter. Adsorption refrigerators are 65% efficient, about the same as vapor compression. They have a lower volumetric performance and higher mass, but in static applications are ideal since they only need heat, not electricity unlike vapor compression.
Horrible efficiency, but since most of the energy is free heat, it barely matters. Adsorbtion coolers should be mandatory in large buildings.
Perfect summary. COP doesn’t matter. Only $/kw of cooling matters.
Absorption refrigerators have low efficiency. Notice that B is the second letter. Adsorption refrigerators are 65% efficient, about the same as vapor compression. They have a lower volumetric performance and higher mass, but in static applications are ideal since they only need heat, not electricity unlike vapor compression.